Tire-bolt wrench



(No Model.)

\ A. WORDEN.

TIRE BOLT WRENCH.-

N0. 115;761. Patented Nov. 26, 1889.

WITNESSES W Q UNITED STATES PATENT OFFICE.

ALVA FORDEN, OF YPSILANTI, MICHIGAN.

TIRE-BOLT WRENCH.

SPECIFICATION forming part of Letters Patent No, 415,761, dated November 26, 1889.

Application filed June 22, 1889. Serial No. 315,173. (No model.)

To all whom it may concern:

Be it known that I, ALVA \VORDEN, a citizen of the United States, residing at Ypsilanti, county of \Vashtenaw, State of Michigan, have invented a certain new and useful Improvement in Tire-Bolt Wrenches; and I declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

In the drawings, Figure 1 is an elevation of a tire-bolt wrench embodying my invention. Fig. 2 is a sectional view of the wrenchhead. Fig. 3 is an end elevation of the wrenchhead. Fig. 4 shows the jaws removed from the socket, one jaw in elevation and the other in section. Fig. 5 is a plan view looking against the end of the jaws.

It is the purpose of my invention to produce an adjustable wrench-head-that is to say, a wrench-head in which the jaws are made adjustable to fit any-sized nut, said jaws being provided with means for setting them rigidly in any desired position of adjustment, so that when once adjusted they can neither be forced together nor forced apart, but constitute to all effects and purposes a rigid wrench-socket.

I11 the drawings I have shown this device applied to a tire-bolt wrench, and it is in that connection that I desire to use it. It is, however, equally valuable as a wrench-head for any other tool; or it maybe employed as a bit-stock for use in the large variety of cases where such tool-holders or bit-stocks are employed, either upon hand-tools or machinetools. I would therefore have it understood that my invention embodies all these different varieties of tools.

In carrying out my invention, A represents the framework, and B the cross-arm, of a tire-bolt wrench of the type illustrated in Letters Patent No. 384,451, dated June 12, 1888, to S. J. Lang.

C is theactuating-crank.

D is my improved wrench head. This wrench-head consists of two jaws D D They are seated within a socket D". This socket is provided with the slots cl, through which thu nib-screws D enter and are each threaded through the adjacent jaw D D (1 is a pin, which projects from one of said jawsinto the other jaw, whereby the two are prevented from slipping longitudinally one with respect to the other.

(Pis a spring located in thebase of the socket and exerting an outward pressure against the inner ends of the jaws D D and a projection on projections 61 may extend from the jaws down into the spring, so as to prevent lateral displacement of the spring.

The operation of the device will now be understood. When it is desired to adjust the wrench to suit a certain size of nut or bolt, the thumb-screws D are loosened and the spring forces the jaws outward from the socket. The thumb-screws cause the jaws to traverse contiguous to the end walls of the socket. The jaws are thus opened as they ad vance. They may then be engaged over the nut or bolt-head, and pressure upon the tool will force them back into the socket until they are contracted sufliciently to accommodate the said nut or bolt. They may then be set firmly in position by the thumb-screws. They need then no further adjustment so long as they are operated upon-nuts or bolts of that particular size. The same is of course true in the case of a tool-socket or bit-stock.

In either case the jaws are adjusted in the same way, and by the term wrench-head, as employed in the claims, I would have it understood as embracing the bit-stock or toolsocket.

YVhat I claim is 1. An adjustable wrench-head consisting of the combination, with a tapering socket provided with slots d, of two jaws located in said socket, and thumb screws entered through the slots'and screw-threaded into the jaws to rigidly clamp the latter in different fixed positions in the socket, substantially as described.

2. A wrench-head consisting of a tapering socket, two jaws located upon the inside of said socket, thumb-screws passed through slots in the socket and screw-threaded into the jaws to rigidly clamp the latter in different fixed positions in the socket, anda spring in the base of the socket adapted to exertits pressure against the jaws, substantially as described.

3. A wrench-head composed of a tapering socket, with slots d, two interior jaws, thumbscrews passed through the slots-and screwthreaded into the jaws to rigidly clamp the latter in different fixed positions in the socket, a spring beneath the jaws, and a pin passing from one jaw into the other for preventing longitudinal displacement, substantially as described.

4. A tire-bolt wrench consisting of a wrench-frame provided with an adjustable wrench-head consisting of a slotted tapering socket with interior jaws D D, thumb-screws D passing through the slots and screwthrea'ded into the jaws to rigidly clamp the same in different fixed positions in the socket, and spring (1 substantially as and for the purposes described.

In testimony whereof I sign this specification in the presence of two witnesses.

ALVA VORDEN.

\Vitnesses:

DARWIN C. GRIFFEN, WILLSON BECKE. 

